Test Grade Calculator

Our Test Grade Calculator provides an instant, comprehensive way to determine student performance based on simple inputs.

You only need two pieces of data: the total number of questions and the number of incorrect answers.

The tool first calculates the raw percentage score (Correct / Total * 100).

This precise percentage is then cross-referenced against established grading rubrics to assign a corresponding letter grade, such as B+ or C-.

Furthermore, it generates a full grading chart, allowing you to visualize exactly where that score falls within standard academic ranges.

For example, if a student answers 45 out of 50 questions correctly, the calculator immediately shows an 90% score and maps it to an 'A-' grade, eliminating manual calculation errors.

To maximize the utility of this calculator, ensure your input data is consistent.

First, always use the total number of questions that were graded, even if some sections were optional.

Second, when calculating 'number wrong,' only count answers that are definitively incorrect; do not subtract partial credit points unless they are explicitly factored into the grading scheme you are using.

For best results, run a sample test with known scores (e.g., 5/10) to verify the tool's output against your manual calculations before grading actual student work.

This confirms that the specific grade scale applied matches your curriculum requirements.